1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.dex;
18
19import com.android.dex.util.Unsigned;
20
21public final class MethodId implements Comparable<MethodId> {
22    private final Dex dex;
23    private final int declaringClassIndex;
24    private final int protoIndex;
25    private final int nameIndex;
26
27    public MethodId(Dex dex, int declaringClassIndex, int protoIndex, int nameIndex) {
28        this.dex = dex;
29        this.declaringClassIndex = declaringClassIndex;
30        this.protoIndex = protoIndex;
31        this.nameIndex = nameIndex;
32    }
33
34    public int getDeclaringClassIndex() {
35        return declaringClassIndex;
36    }
37
38    public int getProtoIndex() {
39        return protoIndex;
40    }
41
42    public int getNameIndex() {
43        return nameIndex;
44    }
45
46    public int compareTo(MethodId other) {
47        if (declaringClassIndex != other.declaringClassIndex) {
48            return Unsigned.compare(declaringClassIndex, other.declaringClassIndex);
49        }
50        if (nameIndex != other.nameIndex) {
51            return Unsigned.compare(nameIndex, other.nameIndex);
52        }
53        return Unsigned.compare(protoIndex, other.protoIndex);
54    }
55
56    public void writeTo(Dex.Section out) {
57        out.writeUnsignedShort(declaringClassIndex);
58        out.writeUnsignedShort(protoIndex);
59        out.writeInt(nameIndex);
60    }
61
62    @Override public String toString() {
63        if (dex == null) {
64            return declaringClassIndex + " " + protoIndex + " " + nameIndex;
65        }
66        return dex.typeNames().get(declaringClassIndex)
67                + "." + dex.strings().get(nameIndex)
68                + dex.readTypeList(dex.protoIds().get(protoIndex).getParametersOffset());
69    }
70}
71